21831272

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{63463}}^1$

素因数の和:63512

約数の個数: 16

約数和(自身を含む): 41886240

約数和(自身を除く): 20054968

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 63463, 126926, 253852, 507704, 2728909, 5457818, 10915636, 21831272]

約数ペア:

[(1, 21831272), (2, 10915636), (4, 5457818), (8, 2728909), (43, 507704), (86, 253852), (172, 126926), (344, 63463)]